/Engine/Source/Runtime/Engine/Public/WorldPartition/Cook/WorldPartitionCookPackage.h
static [IDType](API\Runtime\Engine\WorldPartition\Cook\FWorldPartitionCookPackage\IDType) MakeCookPackageID ( const [FString](API\Runtime\Core\Containers\FString) & InRoot, const [FString](API\Runtime\Core\Containers\FString) & InRelativeFilename )